Addition and subtraction

game

Dotty six for two

Age

5 to 11

Challenge level

Dotty Six game for an adult and child. Will you be the first to have three sixes in a straight line?
game

Strike it out for two

Age

5 to 11

Challenge level

Strike it Out game for an adult and child. Can you stop your partner from being able to go?
game

Shut the box for two

Age

5 to 7

Challenge level

Shut the Box game for an adult and child. Can you turn over the cards which match the numbers on the dice?
article
Developing number fluency - what, why and how

In this article for primary teachers, Lynne McClure outlines what is meant by fluency in the context of number and explains how our selection of NRICH tasks can help.
problem
Number daisy

Age

11 to 14

Challenge level

Can you find six numbers to go in the daisy from which you can make all the numbers from 1 to a number bigger than 25?
article
Place value as a building block for developing fluency in the calculation process

This article for primary teachers encourages exploration of two fundamental ideas, exchange and 'unitising', which will help children become more fluent when calculating.
article
Dot card games

These games devised by Jenni Way use dot cards which will help children see the structure of numbers 1-6 and give them confidence as they begin to add and subtract these numbers.
problem
Double or halve?

Age

5 to 7

Challenge level

Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?
problem
The dice train

Age

7 to 11

Challenge level

This dice train has been made using specific rules. How many different trains can you make?
problem
Difference Sudoku

Age

14 to 16

Challenge level

Use the differences to find the solution to this Sudoku.